What tools are commonly used for DBMS?

A DBMS organises and manages structured data. MCA students should understand tables, relationships, keys, transactions, normalisation and query processing because database knowledge appears in many software roles. The practical value of DBMS becomes clearer when you use it to solve an actual problem instead of studying definitions alone. This point is specifically relevant to the DBMS aspect of MCA study. For this specific question about DBMS, the practical takeaway is to relate the concept to your own MCA learning goal.